{ "data": { "question": { "questionId": "2125", "questionFrontendId": "1998", "boundTopicId": null, "title": "GCD Sort of an Array", "titleSlug": "gcd-sort-of-an-array", "content": "

You are given an integer array nums, and you can perform the following operation any number of times on nums:

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Return true if it is possible to sort nums in non-decreasing order using the above swap method, or false otherwise.

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Example 1:

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\nInput: nums = [7,21,3]\nOutput: true\nExplanation: We can sort [7,21,3] by performing the following operations:\n- Swap 7 and 21 because gcd(7,21) = 7. nums = [21,7,3]\n- Swap 21 and 3 because gcd(21,3) = 3. nums = [3,7,21]\n
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Example 2:

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\nInput: nums = [5,2,6,2]\nOutput: false\nExplanation: It is impossible to sort the array because 5 cannot be swapped with any other element.\n
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Example 3:

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\nInput: nums = [10,5,9,3,15]\nOutput: true\nWe can sort [10,5,9,3,15] by performing the following operations:\n- Swap 10 and 15 because gcd(10,15) = 5. nums = [15,5,9,3,10]\n- Swap 15 and 3 because gcd(15,3) = 3. nums = [3,5,9,15,10]\n- Swap 10 and 15 because gcd(10,15) = 5. nums = [3,5,9,10,15]\n
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Constraints:

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